Die



E. E. MUELLER.

v .APPLICATION FII)LIEE; JAN. 3, I9l9. 1,335,907. Patented Apr. 6, 1920ov 3 SHEETS-SHEET l.

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DIE. APPLICATION FILED JANL 3. -1919.

1,335,907., Patented Apr. 6,1920.

3 SHEETS-SHEET 2.

ATTORNEY F. E, MUELLER;

DIE.

APPLlcATloN HLED 1AN.3. 1919.

Patented Apr. 6, 1920.

3 SHEETS-SHEET 3 and punch lowered; K

f sTATEs Parnu FREDERICK E. MUELLER, OF MOUNT VERNON, NEW YORK, ASSIGNORTO THE NORMA COMPANY OF AMERICA, 0F LONG ISLAND CTY, NEW YORK, ACORPORATION Ol` NEW YORK. y

DIE.

Patented Apr. 6, 1920.

Application filed January 3, 1919. Serial No. 269,483.

To all whom 1f/may concern."

Be it known that I, FREDERICK E. MUEL- LER, a citizen of Germany, and aresident of Mount Vernon, county of Westchester, and,

State of New York, have invented certain new and useful Improvements inDies, of which the following is a specication.

The present invention relates to dies, and particularly dies for forminglateral conligurations, upon tubular articles, and has for an object toprovide such a Ydevice which may be operated with facility, speed andeX- actness, to the end that the articles formed will be uniform and maybe produced in large quantities. Y

lt is also proposed to provide improved means for supporting the articleduring the forming operation, in such manner that there will be nochange in the tubular portion, and no danger of buckling or bulging.

A further object is to provide means for enabling the successive formingof lateral flanges at both ends of a tubular articlehin the samemachine, at the same time mamtaining the intermediate portion of thetube in its original shape.

llith these and other objects inview, an embodiment of my invention isshown in the accompanying drawings, and this embodiment will behereinafter more fullydescribed with reference thereto, and theinvention will be linally pointed out in .the'claims In the accompanyingdrawings,

Figure 1 is a vertical sectional view of an embodiment of Vmy inventionshowing thev press and punch raised;

Fig. 2 is a similar view showing the press Fig. 3 isa plan view of thestationary' portion of the die;

Fig. Lt is a sectional view line 4-4 of Fig. 3; v

Fig. 5 is a vertical sectional view of the lower portion ofthe dieadapted f or forming the one end of the tubular artlcle after the otherend has been formed;

Fig. 6 shows the same with the punch in engagement therewith; and 0Figs. 7, 81and 9 illustrate the'various steps in theformation of theproduct.

Similar reference characters indicate corresponding parts throughout theseveral figures of the drawings.

taken along the Y Referring to the drawings, and more par- Within therim 1l and upon the base `a central opening 16 in the base plate, andprovided with three equally spaced and radial slots 17 having theirouter extremities spaced from the periphery of the plate as .at 18, andtheir inner extremities 'spaced from the opening 15 by abutment portions'I 19, theupper vsurfaces of which are slightly below'the surface of theplate, thereby forming slideways 20 in alinement with the slots. Theplate 14 is secured in place by screws 21 and dowels 22 suitably placed,and engaging' the base plate.

A removable block 23 having a central opening 24 therein is disposed inthe opening 15 of the plate 14, andis supported upon the base plate. Atits upper side the block V plate, there is provided aplate 14, having acentral opening 15 therein concentric withl is shouldered as at 25,Vforming an annular arbor26 upon which the tubular member A to be formedis placed, as indicated in dotted lines, the arbor being of a diameterca pable of snug insertion in the saidshoulder.

Sugrounding the block 23, there are provided radial slide chucksycomprising blocks 27, having upon their under sides slide pieces 28engaging the Aslots 17, and' prof, p vided with sockets 29 therein, inwhich are Y disposed helical springs 30, bearing atene end upon the baseof the socket and at the other end upon the abutment 19. The frontfaceof the chucks is provided with an inwardly projecting portion 31,disposed circumferentially of the arbor 26 in the innermost portion ofthe chuck, its face 32 having a radius substantially equal to theexterior surfaceof the member A, and the ends of, the portion 31 aremitered as at 33 and 34,

so that the ends of the respective portions 31 of the several chuckscontact as shown in Fig. 3, and form a continuous annular y holding ringabout the said member A. The part 35 between the portions 31 and 28 iscircumferential of the block 15, and at each Y side thereof there areprovided lateral slide extensions 36 and 37.

Sector plates 38 are secured upon the plate thereon by means of screws4l and dowels 42 passing through the plates 38 and 14 into the baseplate, the said face plates extending above the lateral extensions 36andi 37 to form slideways 43 and 44 therefor.

Stops 45 and 46 are provided in the slide-` ways 43 and 44, to limit theoutward move-V ment of the chucks, the same being formed" integral witha backing piece 47, secured to the rim l1 by means of a screw 48. Thusin the outward position of the chuck a space is provided between theouter end thereof, and the backing piece as clearly indicated in Fig. 1.,c i i The press and punch comprises a recpro eating head 50 havingthree depending bars 51 secured thereto by screws 52, provided upontheir lower ends with beveled surfaces 53 adapted to enter behind andforce the chucks forwardly into engagement with the member A.

Centrally of the head 50 there is provided a punch 54, having a passage55 there-- through, and provided upon its face withY an annular rim 56in alinenient with the arbor 26, and an annular groove 57 surroundingthe rim, the said rim 56 adapted to enterthe member A, and with thearbor 26 support the same interiorly, while the groove 57 upsets the endof the member A upon the upper surface ofthe portions 3l forming theflange B. c

The punch it will be seen, operates after the chucks are moved inwardly,and during the forming operation supports the member A exteriorlyagainst buckling. Fig. 8 illus- Vtrates the product thus far.

The block 23 is thereupon removed and a I block 58 is inserted in itsplace. This block 58 is provided upon its upper end withan arbor 59surrounded by an annular groove 60 substantially corresponding in shapeand dimensions to the groove 5T of the upper die. The product of thefirst operation is f placed in the die with the flange B resting in thegroove 60, and thereupon a flange C is produced upon its other end inasimilar manner to the production of the flange B.

I have illustrated and described a preferred and satisfactory embodimentof my invention, but it is obvious that changes may be made thereinwithin the spirit and scope thereof, as defined in the appended Claims':l

'adapted to engage the article to shape the same, a plurality ofradiallyldisposed holding members, movable transversely to the directionof movement of said upper member, means adapted to project said holdingmembers into engagement with said article to hold the same during theforming operation, the holdingsurfaces of said member .in said projectedposition constituting asubstantially continuous annular holding meansfor supporting said article exteriorly, the upper surfacev of saidholding means 4constituting a substantially continuous laterallydisposed surface adapted to cooperate with said upper'member to form alower shaping portion to shape the article, and ymeans on said supportand said upper member adapted to support the article interiorly 'duringthe forming operation. Y

2. In a die' for forming outwardly bent port for the tubular unflangedarticle, shaping means adapted to engage theV article to shape theflange at one end of the article, holding members adapted to' supportthe tubular portion of said article during the forming operation, and asecond support having supporting means corresponding to the shape ofsaid shaping means adapted to support said article with its flangeformed at one end by said shaping means, said shaping means adapted toform a corresponding flange at the other end.

3. In a die for forming outwardly bent flanges at the end of tubulararticles, a support for the tubular unllanged article having apositioning portion extending partially into said article, Vshapingmeans adapted to engage the article to shape the flange at one end ofthe article, and havingposi- Vtioning means adapted to extend partiallyinto said article and adapted with said positioningk means of saidsupport to fill and to support said article interiorly during theV myinvention, I have signed my name hereunder.

FREDERICK E. ELLER.

